Olson Technology 7-OR - Manual (Page 9)

CONNECTING THE PIGTAIL TO THE RETURN FIBER
Next, you will connect the 7-OR-RT module’s bare pigtail to the return fiber. The method you use to connect the pigtail
to the return fiber depends on whether the incoming fiber is bare or has an optical connector already installed.
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Figure 4a - ALERT ON Mode Figure 4b - ALERT OFF Mode
Table 3 - All Test Points